{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,23]],"date-time":"2026-09-23T07:54:31Z","timestamp":1790150071357,"version":"4.0.1"},"reference-count":74,"publisher":"The Company of Biologists","issue":"7","license":[{"start":{"date-parts":[[2020,9,5]],"date-time":"2020-09-05T00:00:00Z","timestamp":1599264000000},"content-version":"vor","delay-in-days":797,"URL":"http:\/\/creativecommons.org\/licenses\/by\/3.0"}],"funder":[{"DOI":"10.13039\/100002108","name":"Friedreich's Ataxia Research Alliance","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100002108","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Friedreich's Ataxia Research Alliance Ireland"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2018,7,1]]},"abstract":"<jats:title>ABSTRACT<\/jats:title><jats:p>Friedreich's ataxia (FA) is caused by reduced levels of frataxin, a highly conserved mitochondrial protein. There is currently no effective treatment for this disease, which is characterized by progressive neurodegeneration and cardiomyopathy, the latter being the most common cause of death in patients. We previously developed a Drosophila melanogaster cardiac model of FA, in which the fly frataxin is inactivated specifically in the heart, leading to heart dilatation and impaired systolic function. Methylene Blue (MB) was highly efficient to prevent these cardiac dysfunctions. Here, we used this model to screen in vivo the Prestwick Chemical Library, comprising 1280 compounds. Eleven drugs significantly reduced the cardiac dilatation, some of which may possibly lead to therapeutic applications in the future. The one with the strongest protective effects was paclitaxel, a microtubule-stabilizing drug. In parallel, we characterized the histological defects induced by frataxin deficiency in cardiomyocytes and observed strong sarcomere alterations with loss of striation of actin fibers, along with full disruption of the microtubule network. Paclitaxel and MB both improved these structural defects. Therefore, we propose that frataxin inactivation induces cardiac dysfunction through impaired sarcomere assembly or renewal due to microtubule destabilization, without excluding additional mechanisms. This study is the first drug screening of this extent performed in vivo on a Drosophila model of cardiac disease. Thus, it also brings the proof of concept that cardiac functional imaging in adult Drosophila flies is usable for medium-scale in vivo pharmacological screening, with potent identification of cardioprotective drugs in various contexts of cardiac diseases.<\/jats:p>","DOI":"10.1242\/dmm.033811","type":"journal-article","created":{"date-parts":[[2018,6,15]],"date-time":"2018-06-15T14:43:22Z","timestamp":1529073802000},"source":"Crossref","is-referenced-by-count":13,"title":["Identification of cardioprotective drugs by medium-scale<i>in vivo<\/i>pharmacological screening on a<i>Drosophila<\/i>cardiac model of Friedreich's ataxia"],"prefix":"10.1242","volume":"11","author":[{"given":"Amandine","family":"Palandri","sequence":"first","affiliation":[{"name":"Universit\u00e9 Paris Diderot, Sorbonne Paris Cit\u00e9 , Unit\u00e9 de Biologie Fonctionnelle et Adaptative (BFA) UMR8251 CNRS, 75205, Paris Cedex 13 , France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Elodie","family":"Martin","sequence":"additional","affiliation":[{"name":"Universit\u00e9 Paris Diderot, Sorbonne Paris Cit\u00e9 , Unit\u00e9 de Biologie Fonctionnelle et Adaptative (BFA) UMR8251 CNRS, 75205, Paris Cedex 13 , France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maria","family":"Russi","sequence":"additional","affiliation":[{"name":"Universit\u00e9 Paris Diderot, Sorbonne Paris Cit\u00e9 , Unit\u00e9 de Biologie Fonctionnelle et Adaptative (BFA) UMR8251 CNRS, 75205, Paris Cedex 13 , France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michael","family":"Rera","sequence":"additional","affiliation":[{"name":"Universit\u00e9 Paris Diderot, Sorbonne Paris Cit\u00e9 , Unit\u00e9 de Biologie Fonctionnelle et Adaptative (BFA) UMR8251 CNRS, 75205, Paris Cedex 13 , France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Herv\u00e9","family":"Tricoire","sequence":"additional","affiliation":[{"name":"Universit\u00e9 Paris Diderot, Sorbonne Paris Cit\u00e9 , Unit\u00e9 de Biologie Fonctionnelle et Adaptative (BFA) UMR8251 CNRS, 75205, Paris Cedex 13 , France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6374-1936","authenticated-orcid":false,"given":"V\u00e9ronique","family":"Monnier","sequence":"additional","affiliation":[{"name":"Universit\u00e9 Paris Diderot, Sorbonne Paris Cit\u00e9 , Unit\u00e9 de Biologie Fonctionnelle et Adaptative (BFA) UMR8251 CNRS, 75205, Paris Cedex 13 , France"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"237","published-online":{"date-parts":[[2018,7,20]]},"reference":[{"key":"2024061303472192500_DMM033811C1","doi-asserted-by":"publisher","first-page":"3397","DOI":"10.1093\/hmg\/ddi367","article-title":"RNAi-mediated suppression of the mitochondrial iron chaperone, frataxin, in Drosophila","volume":"14","author":"Anderson","year":"2005","journal-title":"Hum. 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